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Humming radiant floor heating

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Efilletti91
Efilletti91 Member Posts: 1
in Radiant Heating
When the radiant heat actively kicks on in a zone, it produces a hum every 1 second which can last for 1 minute or several minutes. The noise is not in the pipes but the boiler itself. House is 3 years old and this is the first year we've heard it. 90% sure is a propane boiler.

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  • Zman
    Zman Member Posts: 7,569
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    Make and model of boilers would be very helpful. Pictures are even better.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein

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